just wondering why do you want to drop the copression? Are you planning on boosting more in the future? 6.5 psi with the right fuel set up should be more then safe.
Originally posted by jdmhonda98 just wondering why do you want to drop the copression? Are you planning on boosting more in the future? 6.5 psi with the right fuel set up should be more then safe.
Yeah, I guess you are right, but it does make things more safe and easier to tune. Thanks for posting, maybe you are right. I am going to build my bottom end probably this summer anyways, so hopefully everything will be OK until then.
More opinions please
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‘95 Integra GS-R Hatch Engine/tranny: JDM H22A w/ Factory LSD, HCP Mount Kit, Exedy Organic Clutch, Greddy EVO Exhaust, Custom SS Header, AEM SRI, P72 tuned w/ Uberdata, PWR Radiator, Forbidden Motorsports Short Shifter, Trunk mounted Optima Red Top Battery. Handling/Stopping: Koni Yellow Struts, H&R Springs, Danny Tran Racing Traction Bars, Spoon Rear Strut Bar, ITR Front Strut Bar, Brembo Drilled and Slotted Rotors, Brembo pads, SS Brake Lines, Yokohama ES-100 205/40/17, 17’’ Momo GT2‘s. Ice/Interior: Alpine CDA-9835 deck, (4) Pioneer 6.5'' 3-way speakers (200 watt), 2001 GSR Full Leather, Autometer Bezel Gauge Pod, Autometer CF Oil Pressure gauge, Autometer CF Air/Fuel Ratio Gauge, Skunk 2 Shift Knob, ITR Shift Boot, etc. Future Plans: JDM ITR Front End Conversion w/ Gunmetal H.I.D. Headlights, 17’’ Work Emotion Gunmetal Wheels, ITR Spoiler, OEM optional Side Skirts, Shaved side moldings, Kandy Apple Paint.
Dropping compression with head gasket....I don't know
Thicker head gasket = more problems...
That's how it works: (this is just an example):
10:1 comp @ 7PSI = 280hp
9:1 comp @ 9PSI = 280hp
So when you drop compression you need more boost to achive the same hp goal....and your car will have less power when not in boost....... with leaving the comp stock at 10:1 you can run less boost to achive the same hp .... and your car will have more power when not in boost......that means faster spool-up times...less lag....more power of the line..
PS: now these wore just examples...not real numbers....I just wanted you to get the idea of what I'm talking about
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93' Prelude SI
ENGINE:
-AEM EMS (still waiting to be installed)
-JDM LSD Trans
-2.3 SI redone all new seals gaskets - Auto To Manual Swap - Polished Head & Intake - 3 angle valve job - port job on head and intake mani - T3/T4 turbonetics turbo - South Florida performance manifold and 3' downpipe - TIAL 38mm wastegate - Blitz DD blow off valve - Stainless steel 2.5 charge pipes - 24x12x3 Hybrid intercooler - 3' APEXi n1 with 3' custom exhaust - APEXi AVC-R - 450cc's DSM - APEXi SAFC - Denso Plugs - Nology Wires - MSD Ingition & Coil - AEM Pulleys - CAT Removed
BODY:
-Custom Yellow Paint-Value Wide body Front Bumper-Black Widdow Sides & Rear-Z3 Fenders-Predator Hood-JDM Headlights (black housing)-APR DRAG Spoiler-18"Konig Trantum Wheels-Yokohama Parada Rubber-Koni Shocks-Ground Control Coilovers-Shaved Door Handles-Shaved Antena & Emblems-All Clear Lights
INTERIOR & AUDIO:
-Interior Painted Yallow & Silver-Sony CDX-600 Head Unit-All Alpine Speakers-4 Alpine Subs & 2 Amps-autometer tach-BLITZ 80mm Boost gauge-Autometer a/f gauge
Originally posted by RedlinePrelude Dropping compression with head gasket....I don't know
Thicker head gasket = more problems...
That's how it works: (this is just an example):
10:1 comp @ 7PSI = 280hp
9:1 comp @ 9PSI = 280hp
So when you drop compression you need more boost to achive the same hp goal....and your car will have less power when not in boost....... with leaving the comp stock at 10:1 you can run less boost to achive the same hp .... and your car will have more power when not in boost......that means faster spool-up times...less lag....more power of the line..
PS: now these wore just examples...not real numbers....I just wanted you to get the idea of what I'm talking about
Yeah, I understand. My compression in 10.6 not 10.1, it's a JDM H22A. Thanks though.
__________________
‘95 Integra GS-R Hatch Engine/tranny: JDM H22A w/ Factory LSD, HCP Mount Kit, Exedy Organic Clutch, Greddy EVO Exhaust, Custom SS Header, AEM SRI, P72 tuned w/ Uberdata, PWR Radiator, Forbidden Motorsports Short Shifter, Trunk mounted Optima Red Top Battery. Handling/Stopping: Koni Yellow Struts, H&R Springs, Danny Tran Racing Traction Bars, Spoon Rear Strut Bar, ITR Front Strut Bar, Brembo Drilled and Slotted Rotors, Brembo pads, SS Brake Lines, Yokohama ES-100 205/40/17, 17’’ Momo GT2‘s. Ice/Interior: Alpine CDA-9835 deck, (4) Pioneer 6.5'' 3-way speakers (200 watt), 2001 GSR Full Leather, Autometer Bezel Gauge Pod, Autometer CF Oil Pressure gauge, Autometer CF Air/Fuel Ratio Gauge, Skunk 2 Shift Knob, ITR Shift Boot, etc. Future Plans: JDM ITR Front End Conversion w/ Gunmetal H.I.D. Headlights, 17’’ Work Emotion Gunmetal Wheels, ITR Spoiler, OEM optional Side Skirts, Shaved side moldings, Kandy Apple Paint.
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